QT325S-16.384MAHE-T

Overview

The QST QT325S-16.384MAHE-T is a surface-mount crystal oscillator operating at a fundamental frequency of 16.384 MHz. It utilizes a HC-49S package style with a metal can construction, designed for stable clock signal generation in digital circuits. The component features low phase noise and high frequency stability, making it suitable for precision timing applications where consistent performance under varying environmental conditions is required.

Feature Summary

• Fundamental mode operation ensures precise frequency control
• Metal can packaging provides robust electromagnetic interference shielding
• Surface-mount design facilitates automated assembly processes

Applications

• Digital communication systems requiring stable clock references
• Microcontroller and microprocessor clock inputs
• Test and measurement equipment timing circuits

Procurement Notes

Verify the specific load capacitance requirements against your circuit design before procurement. Ensure that the soldering profile complies with the manufacturer's thermal specifications to prevent damage to the crystal element. Confirm that the ordering suffix matches the exact tolerance and stability grades needed for your application to avoid functional mismatches.

Selection Notes

Select this component when fundamental mode stability is prioritized over harmonic modes. Consider the physical dimensions of the HC-49S package for PCB layout constraints. Evaluate the operating temperature range to ensure the specified frequency stability holds across your intended environmental conditions.

Part Context

This part belongs to QST's line of standard frequency crystals. It serves as a passive resonator essential for establishing base frequencies in electronic systems. Unlike active oscillators, it requires an external circuit to generate a square wave output, relying on the host device's internal amplifier.